Multi-gear variable-gear drilling machine power head

Abstract

The utility model belongs to the technical field of drilling machine equipment, and particularly relates to a multi-gear variable-gear drilling machine power head which comprises a power box, a longitudinally-extending main shaft is arranged on the power box, a power input gear is installed on the main shaft in the power box, gears of multiple gears are meshed with the power input gear when the gears of the multiple gears correspond to the gears, and the gears of the multiple gears are meshed with the power input gear when the gears of the multiple gears correspond to the gears. The rotating speed and the torque output to the main shaft are adjusted through the gears of multiple gears, the torque is controllable, the application of the drilling machine power head is increased, the drilling machine power head is suitable for operation under the complex address condition, in addition, the lubricating oil pump is arranged, all bearings in the power box can be lubricated, the power input gear can be lubricated, and the service life of the drilling machine power head is prolonged. The service life of the bearing and the power input gear is prolonged, the lubricating mode is convenient, and manual lubrication is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling equipment, in particular to a multi-speed variable gear drilling power head. Background Art

[0002] The power head of a drilling rig is a key component of the drilling rig, which is used to drive the drill bit to drill holes. The power head type drilling rig can achieve long-stroke feeding and tower-free lifting. It can easily lift and lower the drill rod when drilling holes at various angles. It has shown obvious advantages in tunnel drilling and has become the leading model of tunnel drilling rigs in many countries. The output speed of the traditional drilling rig power head is not variable. In actual operation, it cannot adapt to complex geological conditions. It needs to use throttling and other methods to adjust the speed and torque, which is very inconvenient. Utility Model Content

[0003] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a multi-speed variable gear drilling rig power head.

[0004] A multi-speed variable gear drilling rig power head comprises a power box, a longitudinally extending main shaft is provided on the power box, a power input gear is installed on the main shaft in the power box, a first shift oil cylinder is installed on the power box, the output end of the first shift oil cylinder is connected to the first shift bracket, when the drilling rig power head is in the first gear, the first shift bracket drives the moving gear to move and mesh with the power input gear, when the drilling rig power head is in the second gear, the first shift bracket drives the moving gear to move and mesh with the power output gear, the power output gear is coaxially arranged with the transmission gear, the transmission gear moves through the second shift bracket and meshes with the power input gear, when the drilling rig power head is in the third gear, the first shift bracket drives the moving gear to move and mesh with the power output gear, the power output gear is coaxially arranged with the transmission gear, the transmission gear moves through the second shift bracket and meshes with the intermediate gear, the intermediate gear is coaxially arranged with the driving gear, and the driving gear meshes with the power input gear.

[0005] Furthermore, a support frame is provided on the bottom inner wall of the power box, and a lubricating oil pump is installed on the support frame. The oil pump gear of the lubricating oil pump is meshed with the lubrication gear, the lubrication gear is coaxially arranged with the driving gear, and the lubricating oil pump is connected to each bearing in the power box through a pipeline.

[0006] Furthermore, the lubricating oil pump is connected to the oil tank through a pipeline, and the oil tank is fixedly mounted on the side wall of the power box. A plurality of oil outlet holes are provided at the bottom of the oil tank. The oil storage groove on the upper end surface of the power input gear corresponds to the oil storage groove below the oil outlet hole. The oil storage groove is connected to the tooth groove on the power input gear through a branch oil groove.

[0007] Furthermore, an arc-shaped protrusion is provided on the top side wall of the oil storage tank.

[0008] Furthermore, the plurality of oil outlet holes are arranged in an arc shape.

[0009] Furthermore, the movable gear is slidably connected to the transmission shaft, the transmission shaft is connected to the output end of the power motor, and the power motor is installed on the top of the power box.

[0010] Due to the adoption of the above technical solution, the beneficial technical effects of the utility model are:

[0011] 1. The power head of the drilling rig in the utility model can realize multiple gear changes. The speed and torque output to the main shaft are adjusted by the gears of multiple gears. The torque is controllable, which increases the use of the power head of the drilling rig and is suitable for operations under complex address conditions.

[0012] 2. The utility model is provided with a lubricating oil pump, which can lubricate various bearings in the power box and lubricate the power input gear, thereby increasing the service life of the bearings and the power input gear, and the lubrication method is convenient and does not require manual lubrication. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a multi-speed variable gear drilling rig power head of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the power box in the utility model;

[0015] Figure 3 This is a front view of the internal structure of the power box in the utility model;

[0016] Figure 4 It is an exploded schematic diagram of the local structure in the power box of the utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the oil tank in the utility model;

[0018] Figure 6 It is a top view of the power input gear in the utility model;

[0019] Figure 7 For this utility model Figure 6 Schematic diagram of the cross-section structure in the AA direction

[0020] Figure 8 For this utility model Figure 7 A magnified schematic diagram of area B.

[0021] In the figure, 1, power box, 2, main shaft, 3, power input gear, 4, first shift cylinder, 5, first shift bracket, 6, moving gear, 7, power output gear, 8, transmission gear, 9, second shift bracket, 10, intermediate gear, 11, driving gear, 12, support frame, 13, lubricating oil pump, 14, oil pump gear, 15, lubricating gear, 16, oil tank, 17, oil outlet hole, 18, oil storage tank, 19, branch oil tank, 20, arc-shaped protrusion, 21, transmission shaft, 22, power motor. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the technical solution of the utility model, the utility model is further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on this drawing and embodiment, which all belong to the protection scope of the utility model.

[0023] according to Figure 1-8 As shown, a multi-speed variable gear drilling power head comprises a power box 1, a longitudinally extending main shaft 2 is provided on the power box 1, a power input gear 3 is installed on the main shaft 2 in the power box 1, a first shift oil cylinder 4 is installed on the power box 1, and the output end of the first shift oil cylinder 4 is connected to the first shift bracket 5. When the drilling power head is in the first gear, the first shift bracket 5 drives the moving gear 6 to move and mesh with the power input gear 3. When the drilling power head is in the second gear, the first shift bracket 5 drives the moving gear 6 to move and mesh with the power input gear 3. The power output gear 7 is coaxially arranged with the transmission gear 8, and the transmission gear 8 is moved by the second shift bracket 9 and meshed with the power input gear 3. When the drilling rig power head is in third gear, the first shift bracket 5 drives the moving gear 6 to move and mesh with the power output gear 7. The power output gear 7 is coaxially arranged with the transmission gear 8, and the transmission gear 8 is moved by the second shift bracket 9 and meshed with the intermediate gear 10. The intermediate gear 10 is coaxially arranged with the drive gear 11, and the drive gear 11 meshes with the power input gear 3.

[0024] In the above specific technical solution, the drilling rig power head can realize multiple gear changes, and the speed and torque output to the main shaft are adjusted by gears of multiple gears. The torque is controllable, which increases the use of the drilling rig power head and is suitable for operations under complex address conditions.

[0025] A support frame 12 is provided on the inner wall of the bottom of the power box 1, and a lubricating oil pump 13 is installed on the support frame 12. The oil pump gear 14 of the lubricating oil pump 13 is meshed with the lubricating gear 15. The lubricating gear 15 is coaxially arranged with the driving gear 11. The lubricating oil pump 13 is connected to each bearing in the power box 1 through a pipeline. The power box 1 can drive the oil pump gear 14 to rotate during operation, thereby lubricating each bearing and increasing the service life of the bearing.

[0026] The lubricating oil pump 13 is connected to the oil tank 16 through a pipeline. The oil tank 16 is fixedly installed on the side wall of the power box 1. A plurality of oil outlet holes 17 are provided at the bottom of the oil tank 16. The lower part of the oil outlet hole 17 corresponds to an oil storage tank 18 on the upper end surface of the power input gear 3. The oil storage tank 18 is connected to the tooth groove on the power input gear 3 through a branch oil groove 19. The lubricating oil is transported into the oil tank 16 through a pipeline and flows into the oil storage tank 18 through the oil outlet hole 17. The lubricating oil in the oil storage tank 18 flows to the tooth groove of the power input gear 3 through the branch oil groove 19 to lubricate it, thereby increasing the service life of the power input gear 3.

[0027] An arc-shaped protrusion 20 is provided on the top side wall of the oil storage tank 18. When the lubricating oil falls into the oil storage tank 18, during the rotation of the power input gear 3, the arc-shaped protrusion 20 can play a certain blocking role on the lubricating oil and prevent the lubricating oil from flying out from the top of the oil storage tank 18.

[0028] The plurality of oil outlet holes 17 are arranged in an arc shape.

[0029] The moving gear 6 is slidably connected to the transmission shaft 21 , and the transmission shaft 21 is connected to the output end of the power motor 22 . The power motor 22 is installed on the top of the power box 1 .

[0030] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A multi-speed variable gear drilling rig power head, comprising a power box (1), characterized in that: The power box (1) is provided with a longitudinally extending main shaft (2), and a power input gear (3) is installed on the main shaft (2) in the power box (1). A first shift oil cylinder (4) is installed on the power box (1), and the output end of the first shift oil cylinder (4) is connected to a first shift bracket (5). When the drilling rig power head is in the first gear, the first shift bracket (5) drives the moving gear (6) to move and mesh with the power input gear (3). When the drilling rig power head is in the second gear, the first shift bracket (5) drives the moving gear (6) to move and mesh with the power output gear (7). The power output gear ( The driving gear (7) is coaxially arranged with the transmission gear (8), the transmission gear (8) is moved by the second shift bracket (9) and meshed with the power input gear (3), when the drilling rig power head is in the third gear, the first shift bracket (5) drives the moving gear (6) to move and meshed with the power output gear (7), the power output gear (7) is coaxially arranged with the transmission gear (8), the transmission gear (8) is moved by the second shift bracket (9) and meshed with the intermediate gear (10), the intermediate gear (10) is coaxially arranged with the driving gear (11), and the driving gear (11) meshes with the power input gear (3).

2. The multi-speed variable gear drilling rig power head according to claim 1, characterized in that: A support frame (12) is provided on the inner wall of the bottom of the power box (1), a lubricating oil pump (13) is installed on the support frame (12), an oil pump gear (14) of the lubricating oil pump (13) is meshed with a lubricating gear (15), the lubricating gear (15) is coaxially arranged with the driving gear (11), and the lubricating oil pump (13) is connected to each bearing in the power box (1) through a pipeline.

3. The multi-speed variable gear drilling rig power head according to claim 2, characterized in that: The lubricating oil pump (13) is connected to an oil tank (16) through a pipeline. The oil tank (16) is fixedly mounted on the side wall of the power box (1). A plurality of oil outlet holes (17) are provided at the bottom of the oil tank (16). Below the oil outlet holes (17) is an oil storage groove (18) corresponding to the upper end surface of the power input gear (3). The oil storage groove (18) is connected to the tooth groove on the power input gear (3) through a branch oil groove (19).

4. The multi-speed variable gear drilling power head according to claim 3, characterized in that: An arc-shaped protrusion (20) is provided on the top side wall of the oil storage tank (18).

5. The multi-speed variable gear drilling power head according to claim 4, characterized in that: The plurality of oil outlet holes (17) are arranged in an arc shape.

6. The multi-speed variable gear drilling power head according to claim 1, characterized in that: The moving gear (6) is slidably connected to the transmission shaft (21), the transmission shaft (21) is connected to the output end of the power motor (22), and the power motor (22) is installed on the top of the power box (1).

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